; PPU registers
PPUCTRL		= $2000
PPUMASK		= $2001
PPUSTATUS	= $2002
OAMADDR		= $2003
OAMDATA		= $2004
PPUSCROLL	= $2005
PPUADDR		= $2006
PPUDATA		= $2007
OAMDMA		= $4014

; APU registers
APU_PULSE1CTRL  = $4000
APU_PULSE1RAMP  = $4001
APU_PULSE1FTUNE = $4002
APU_PULSE1CTUNE = $4003
APU_PULSE2CTRL  = $4004
APU_PULSE2RAMP  = $4005
APU_PULSE2FTUNE = $4006
APU_PULSE2STUNE = $4007
APU_TRICTRL1    = $4008
APU_TRICTRL2    = $4009
APU_TRIFREQ1    = $400A
APU_TRIFREQ2    = $400B
APU_NOISECTRL   = $400C
APU_NOISEFREQ1  = $400E
APU_NOISEFREQ2  = $400F
APU_MODCTRL     = $4010
APU_MODDA       = $4011
APU_MODADDR     = $4012
APU_MODLEN      = $4013
APU_CHANCTRL    = $4015

; Joypad registers
JOYPAD1	        = $4016
JOYPAD2	        = $4017
